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MGB Nissan Engine/Head Equivalent ??? Datsun B-Series?

dklawson

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I have a friend who is running an Austin Marina in Lemons racing. His car runs an MGB engine and gearbox. While taking engine parts to the shop this week the machinist showed him something that surprised him.

The machinist had a cylinder head from a Nissan forklift. There are some differences with the rocker arm oil feed and heater valve takeoff but the heads are surprisingly similar. The machine shop has had the head just lying around from a customer who left it years ago. My friend is curious about whether this head would fit the B engine he is working on.

He put some pictures in his PhotoBucket account. Please take a look at them using the forward and back buttons on the page that opens via the link below.
https://s1270.photobucket.com/user/...pg.html?&_suid=139179378372805847910819276496

I know that BMC shared A-series engine technology with Datsun/Nissan during the late 1950 and that the Japanese developed their own version of the A-series but I have not heard of them doing anything similar with the B-series. Is there any history to suggest that the Japanese got the technology from BMC for the MGA engine or later MGB?

Thanks for looking and sharing your comments.

Doug L.
 

Marvin Gruber

Yoda
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They can be make to interchange. A friend of mine put a 1800 B head on his Datsun pickup truck engine many years ago and drove the truck for years. Seems like the truck had a 1600 engine. I think I remember him saying it would ping some if he got on it hard.

Marv
 

Billm

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The heads that fit are from the "E" and "J" series engines (mid '70's mostly)
They both just bolt right on but you need to port them and put in bigger valves to get good performance.
I have put them on MGB's many times.
The nice thing is that they were made with good metal using the PROPER casting/cooling processes so they will almost never crack which is more than you can say for the BMC versions!
BillM
 
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dklawson

dklawson

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Thank you very much for the information I will let my friend know what may be involved if he decides to pursue this Nissan head.
 
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